DooM: Fall of Mars is a role-playing game set in the Doom universe, offering a gameplay experience reminiscent of the original Diablo. Players trade swords and axes for pistols and shotguns in this intriguing crossover. The game starts at a base where you can purchase supplies, rest, and interact with characters, similar to Diablo's setup.

The action unfolds within a lunar base, echoing the structure of the classic game Blizzard. Instead of facing skeletons and zombies, players encounter familiar Doom enemies. Armed with pistols, shotguns, machine guns, and other iconic weapons from the franchise, players engage in thrilling battles. Additionally, various types of armor and defensive items can be discovered throughout the game.